Behind neck headphone



FIG. 1 is a top, side perspective view of an embodiment of a behind neck headphone;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a rear view of thereof;

FIG. 7 is a front view thereof;

FIG. 8 is a top, side perspective view of another embodiment of a behind neck headphone;

FIG. 9 is a top view thereof;

FIG. 10 is a bottom view thereof;

FIG. 11 is a right side view thereof;

FIG. 12 is a left side view thereof;

FIG. 13 is a rear view thereof; and,

FIG. 14 is a front view thereof.

The broken lines depict unclaimed features that form no part of the claimed design. 

CLAIM The ornamental design for a behind neck headphone, as shown and described. 